| /* |
| * TI DaVinci DM644x chip specific setup |
| * |
| * Author: Kevin Hilman, Deep Root Systems, LLC |
| * |
| * 2007 (c) Deep Root Systems, LLC. This file is licensed under |
| * the terms of the GNU General Public License version 2. This program |
| * is licensed "as is" without any warranty of any kind, whether express |
| * or implied. |
| */ |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/clk.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/mach/map.h> |
| |
| #include <mach/dm646x.h> |
| #include <mach/clock.h> |
| #include <mach/cputype.h> |
| #include <mach/edma.h> |
| #include <mach/irqs.h> |
| #include <mach/psc.h> |
| #include <mach/mux.h> |
| #include <mach/common.h> |
| |
| #include "clock.h" |
| #include "mux.h" |
| |
| /* |
| * Device specific clocks |
| */ |
| #define DM646X_REF_FREQ 27000000 |
| #define DM646X_AUX_FREQ 24000000 |
| |
| static struct pll_data pll1_data = { |
| .num = 1, |
| .phys_base = DAVINCI_PLL1_BASE, |
| }; |
| |
| static struct pll_data pll2_data = { |
| .num = 2, |
| .phys_base = DAVINCI_PLL2_BASE, |
| }; |
| |
| static struct clk ref_clk = { |
| .name = "ref_clk", |
| .rate = DM646X_REF_FREQ, |
| }; |
| |
| static struct clk aux_clkin = { |
| .name = "aux_clkin", |
| .rate = DM646X_AUX_FREQ, |
| }; |
| |
| static struct clk pll1_clk = { |
| .name = "pll1", |
| .parent = &ref_clk, |
| .pll_data = &pll1_data, |
| .flags = CLK_PLL, |
| }; |
| |
| static struct clk pll1_sysclk1 = { |
| .name = "pll1_sysclk1", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV1, |
| }; |
| |
| static struct clk pll1_sysclk2 = { |
| .name = "pll1_sysclk2", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV2, |
| }; |
| |
| static struct clk pll1_sysclk3 = { |
| .name = "pll1_sysclk3", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV3, |
| }; |
| |
| static struct clk pll1_sysclk4 = { |
| .name = "pll1_sysclk4", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV4, |
| }; |
| |
| static struct clk pll1_sysclk5 = { |
| .name = "pll1_sysclk5", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV5, |
| }; |
| |
| static struct clk pll1_sysclk6 = { |
| .name = "pll1_sysclk6", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV6, |
| }; |
| |
| static struct clk pll1_sysclk8 = { |
| .name = "pll1_sysclk8", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV8, |
| }; |
| |
| static struct clk pll1_sysclk9 = { |
| .name = "pll1_sysclk9", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV9, |
| }; |
| |
| static struct clk pll1_sysclkbp = { |
| .name = "pll1_sysclkbp", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL | PRE_PLL, |
| .div_reg = BPDIV, |
| }; |
| |
| static struct clk pll1_aux_clk = { |
| .name = "pll1_aux_clk", |
| .parent = &pll1_clk, |
| .flags = CLK_PLL | PRE_PLL, |
| }; |
| |
| static struct clk pll2_clk = { |
| .name = "pll2_clk", |
| .parent = &ref_clk, |
| .pll_data = &pll2_data, |
| .flags = CLK_PLL, |
| }; |
| |
| static struct clk pll2_sysclk1 = { |
| .name = "pll2_sysclk1", |
| .parent = &pll2_clk, |
| .flags = CLK_PLL, |
| .div_reg = PLLDIV1, |
| }; |
| |
| static struct clk dsp_clk = { |
| .name = "dsp", |
| .parent = &pll1_sysclk1, |
| .lpsc = DM646X_LPSC_C64X_CPU, |
| .flags = PSC_DSP, |
| .usecount = 1, /* REVISIT how to disable? */ |
| }; |
| |
| static struct clk arm_clk = { |
| .name = "arm", |
| .parent = &pll1_sysclk2, |
| .lpsc = DM646X_LPSC_ARM, |
| .flags = ALWAYS_ENABLED, |
| }; |
| |
| static struct clk uart0_clk = { |
| .name = "uart0", |
| .parent = &aux_clkin, |
| .lpsc = DM646X_LPSC_UART0, |
| }; |
| |
| static struct clk uart1_clk = { |
| .name = "uart1", |
| .parent = &aux_clkin, |
| .lpsc = DM646X_LPSC_UART1, |
| }; |
| |
| static struct clk uart2_clk = { |
| .name = "uart2", |
| .parent = &aux_clkin, |
| .lpsc = DM646X_LPSC_UART2, |
| }; |
| |
| static struct clk i2c_clk = { |
| .name = "I2CCLK", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_I2C, |
| }; |
| |
| static struct clk gpio_clk = { |
| .name = "gpio", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_GPIO, |
| }; |
| |
| static struct clk aemif_clk = { |
| .name = "aemif", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_AEMIF, |
| .flags = ALWAYS_ENABLED, |
| }; |
| |
| static struct clk emac_clk = { |
| .name = "emac", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_EMAC, |
| }; |
| |
| static struct clk pwm0_clk = { |
| .name = "pwm0", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_PWM0, |
| .usecount = 1, /* REVIST: disabling hangs system */ |
| }; |
| |
| static struct clk pwm1_clk = { |
| .name = "pwm1", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_PWM1, |
| .usecount = 1, /* REVIST: disabling hangs system */ |
| }; |
| |
| static struct clk timer0_clk = { |
| .name = "timer0", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_TIMER0, |
| }; |
| |
| static struct clk timer1_clk = { |
| .name = "timer1", |
| .parent = &pll1_sysclk3, |
| .lpsc = DM646X_LPSC_TIMER1, |
| }; |
| |
| static struct clk timer2_clk = { |
| .name = "timer2", |
| .parent = &pll1_sysclk3, |
| .flags = ALWAYS_ENABLED, /* no LPSC, always enabled; c.f. spruep9a */ |
| }; |
| |
| static struct clk vpif0_clk = { |
| .name = "vpif0", |
| .parent = &ref_clk, |
| .lpsc = DM646X_LPSC_VPSSMSTR, |
| .flags = ALWAYS_ENABLED, |
| }; |
| |
| static struct clk vpif1_clk = { |
| .name = "vpif1", |
| .parent = &ref_clk, |
| .lpsc = DM646X_LPSC_VPSSSLV, |
| .flags = ALWAYS_ENABLED, |
| }; |
| |
| struct davinci_clk dm646x_clks[] = { |
| CLK(NULL, "ref", &ref_clk), |
| CLK(NULL, "aux", &aux_clkin), |
| CLK(NULL, "pll1", &pll1_clk), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk1), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk2), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk3), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk4), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk5), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk6), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk8), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclk9), |
| CLK(NULL, "pll1_sysclk", &pll1_sysclkbp), |
| CLK(NULL, "pll1_aux", &pll1_aux_clk), |
| CLK(NULL, "pll2", &pll2_clk), |
| CLK(NULL, "pll2_sysclk1", &pll2_sysclk1), |
| CLK(NULL, "dsp", &dsp_clk), |
| CLK(NULL, "arm", &arm_clk), |
| CLK(NULL, "uart0", &uart0_clk), |
| CLK(NULL, "uart1", &uart1_clk), |
| CLK(NULL, "uart2", &uart2_clk), |
| CLK("i2c_davinci.1", NULL, &i2c_clk), |
| CLK(NULL, "gpio", &gpio_clk), |
| CLK(NULL, "aemif", &aemif_clk), |
| CLK("davinci_emac.1", NULL, &emac_clk), |
| CLK(NULL, "pwm0", &pwm0_clk), |
| CLK(NULL, "pwm1", &pwm1_clk), |
| CLK(NULL, "timer0", &timer0_clk), |
| CLK(NULL, "timer1", &timer1_clk), |
| CLK("watchdog", NULL, &timer2_clk), |
| CLK(NULL, "vpif0", &vpif0_clk), |
| CLK(NULL, "vpif1", &vpif1_clk), |
| CLK(NULL, NULL, NULL), |
| }; |
| |
| #if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE) |
| static struct resource dm646x_emac_resources[] = { |
| { |
| .start = DM646X_EMAC_BASE, |
| .end = DM646X_EMAC_BASE + 0x47ff, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_DM646X_EMACRXTHINT, |
| .end = IRQ_DM646X_EMACRXTHINT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = IRQ_DM646X_EMACRXINT, |
| .end = IRQ_DM646X_EMACRXINT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = IRQ_DM646X_EMACTXINT, |
| .end = IRQ_DM646X_EMACTXINT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = IRQ_DM646X_EMACMISCINT, |
| .end = IRQ_DM646X_EMACMISCINT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device dm646x_emac_device = { |
| .name = "davinci_emac", |
| .id = 1, |
| .num_resources = ARRAY_SIZE(dm646x_emac_resources), |
| .resource = dm646x_emac_resources, |
| }; |
| |
| #endif |
| |
| /* |
| * Device specific mux setup |
| * |
| * soc description mux mode mode mux dbg |
| * reg offset mask mode |
| */ |
| static const struct mux_config dm646x_pins[] = { |
| MUX_CFG(DM646X, ATAEN, 0, 0, 1, 1, true) |
| |
| MUX_CFG(DM646X, AUDCK1, 0, 29, 1, 0, false) |
| |
| MUX_CFG(DM646X, AUDCK0, 0, 28, 1, 0, false) |
| |
| MUX_CFG(DM646X, CRGMUX, 0, 24, 7, 5, true) |
| |
| MUX_CFG(DM646X, STSOMUX_DISABLE, 0, 22, 3, 0, true) |
| |
| MUX_CFG(DM646X, STSIMUX_DISABLE, 0, 20, 3, 0, true) |
| |
| MUX_CFG(DM646X, PTSOMUX_DISABLE, 0, 18, 3, 0, true) |
| |
| MUX_CFG(DM646X, PTSIMUX_DISABLE, 0, 16, 3, 0, true) |
| |
| MUX_CFG(DM646X, STSOMUX, 0, 22, 3, 2, true) |
| |
| MUX_CFG(DM646X, STSIMUX, 0, 20, 3, 2, true) |
| |
| MUX_CFG(DM646X, PTSOMUX_PARALLEL, 0, 18, 3, 2, true) |
| |
| MUX_CFG(DM646X, PTSIMUX_PARALLEL, 0, 16, 3, 2, true) |
| |
| MUX_CFG(DM646X, PTSOMUX_SERIAL, 0, 18, 3, 3, true) |
| |
| MUX_CFG(DM646X, PTSIMUX_SERIAL, 0, 16, 3, 3, true) |
| }; |
| |
| /*----------------------------------------------------------------------*/ |
| |
| static const s8 dma_chan_dm646x_no_event[] = { |
| 0, 1, 2, 3, 13, |
| 14, 15, 24, 25, 26, |
| 27, 30, 31, 54, 55, |
| 56, |
| -1 |
| }; |
| |
| static struct edma_soc_info dm646x_edma_info = { |
| .n_channel = 64, |
| .n_region = 6, /* 0-1, 4-7 */ |
| .n_slot = 512, |
| .n_tc = 4, |
| .noevent = dma_chan_dm646x_no_event, |
| }; |
| |
| static struct resource edma_resources[] = { |
| { |
| .name = "edma_cc", |
| .start = 0x01c00000, |
| .end = 0x01c00000 + SZ_64K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "edma_tc0", |
| .start = 0x01c10000, |
| .end = 0x01c10000 + SZ_1K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "edma_tc1", |
| .start = 0x01c10400, |
| .end = 0x01c10400 + SZ_1K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "edma_tc2", |
| .start = 0x01c10800, |
| .end = 0x01c10800 + SZ_1K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .name = "edma_tc3", |
| .start = 0x01c10c00, |
| .end = 0x01c10c00 + SZ_1K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_CCINT0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = IRQ_CCERRINT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| /* not using TC*_ERR */ |
| }; |
| |
| static struct platform_device dm646x_edma_device = { |
| .name = "edma", |
| .id = -1, |
| .dev.platform_data = &dm646x_edma_info, |
| .num_resources = ARRAY_SIZE(edma_resources), |
| .resource = edma_resources, |
| }; |
| |
| /*----------------------------------------------------------------------*/ |
| |
| #if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE) |
| |
| void dm646x_init_emac(struct emac_platform_data *pdata) |
| { |
| pdata->ctrl_reg_offset = DM646X_EMAC_CNTRL_OFFSET; |
| pdata->ctrl_mod_reg_offset = DM646X_EMAC_CNTRL_MOD_OFFSET; |
| pdata->ctrl_ram_offset = DM646X_EMAC_CNTRL_RAM_OFFSET; |
| pdata->mdio_reg_offset = DM646X_EMAC_MDIO_OFFSET; |
| pdata->ctrl_ram_size = DM646X_EMAC_CNTRL_RAM_SIZE; |
| pdata->version = EMAC_VERSION_2; |
| dm646x_emac_device.dev.platform_data = pdata; |
| platform_device_register(&dm646x_emac_device); |
| } |
| #else |
| |
| void dm646x_init_emac(struct emac_platform_data *unused) {} |
| |
| #endif |
| |
| static struct map_desc dm646x_io_desc[] = { |
| { |
| .virtual = IO_VIRT, |
| .pfn = __phys_to_pfn(IO_PHYS), |
| .length = IO_SIZE, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| /* Contents of JTAG ID register used to identify exact cpu type */ |
| static struct davinci_id dm646x_ids[] = { |
| { |
| .variant = 0x0, |
| .part_no = 0xb770, |
| .manufacturer = 0x017, |
| .cpu_id = DAVINCI_CPU_ID_DM6467, |
| .name = "dm6467", |
| }, |
| }; |
| |
| static void __iomem *dm646x_psc_bases[] = { |
| IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE), |
| }; |
| |
| static struct davinci_soc_info davinci_soc_info_dm646x = { |
| .io_desc = dm646x_io_desc, |
| .io_desc_num = ARRAY_SIZE(dm646x_io_desc), |
| .jtag_id_base = IO_ADDRESS(0x01c40028), |
| .ids = dm646x_ids, |
| .ids_num = ARRAY_SIZE(dm646x_ids), |
| .cpu_clks = dm646x_clks, |
| .psc_bases = dm646x_psc_bases, |
| .psc_bases_num = ARRAY_SIZE(dm646x_psc_bases), |
| }; |
| |
| void __init dm646x_init(void) |
| { |
| davinci_common_init(&davinci_soc_info_dm646x); |
| davinci_mux_register(dm646x_pins, ARRAY_SIZE(dm646x_pins)); |
| } |
| |
| static int __init dm646x_init_devices(void) |
| { |
| if (!cpu_is_davinci_dm646x()) |
| return 0; |
| |
| platform_device_register(&dm646x_edma_device); |
| return 0; |
| } |
| postcore_initcall(dm646x_init_devices); |